Dobbs has been highly critical of conservative Republicans like McMullin and former Massachusetts Gov. Mitt Romney, the 2012 GOP nominee, who have opposed Trump’s candidacy.

Earlier this year, Dobbs called Romney and House Speaker Paul Ryan “despicable” for supposedly undermining Trump’s candidacy, referring to their failed 2012 White House bid as “Hell’s ticket” and the “two-some from Hell.”

“Who does Romney think he is? Romney is nothing more now, obviously, than a tool of an ossified, far too entitled Republican establishment,” Dobbs said.

“Ryan and Romney hardly giving a thought to their attacks against Trump amounting to a campaign gift to Hillary Clinton and the Democrats,” he added.

Many polls show McMullin close behind behind Trump in Utah. The state has a large percentage of Mormon voters, many of whom have been alienated by Trump’s inflammatory rhetoric and unorthodox candidacy. The RealClearPolitics average of recent polls Thursday showed Trump at 31% support, with McMullin and Democratic presidential nominee Hillary Clinton tied at 25% support.

Fox Business did not respond to Business Insider’s request for comment.